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Finding the Fourth Proportional to 6,473.80, 8,931.54 and 3,819.88

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Solution

The fourth proportional to 6,473.80, 8,931.54 and 3,819.88 is: 5,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,473.80 : 8,931.54 = 3,819.88 : x
  2. Step 2: Convert to fraction form
    6,473.80/8,931.54 = 3,819.88/x
  3. Step 3: Cross multiply
    6,473.80x = 8,931.54 × 3,819.88
  4. Step 4: Simplify right side
    6,473.80x = 34,117,411.02
  5. Step 5: Solve for x
    x = 34,117,411.02/6,473.80
  6. Step 6: Final answer
    x = 5,270.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.